Time Division Multiplexing 
Time Division Multiplex 
Time Division Multiplexed 
Travel Demand Management 
Transportation Demand Management 
Therapeutic Drug Monitoring 
Time Division Multiplexer 
Too Darn Many 
Technology Development Mission 
Technical Document Management 
Technology Demonstration Mission 
Time Domain Multiplexing 
Too Damn Many 
Trunk Data Module 
Tactical Dissemination Modules 
Tandem Aero 
Target Debug Monitor 
Tasmania Department of Mines 
Technical Data Management 
Technical Data Memorandum 
Technical Decision Maker 
Technical direction memorandum 
Technology Demonstration Model 
TECHNOLOGY DEVELOPMENT MISSIONS 
Telecom Designed Network 
Telekom Designed Networks 
Telemetric Data Monitor 
Telephone Directory Memory 
Template Descriptor Memory 
Termination Decision Model